Answer / engr muhammad yuonis

To isolate main(WAPDA) supply to DG set supply.

what is ring main unit?

1 Answers   Otis,

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How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

0 Answers  

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In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

0 Answers  

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What is the difference between 11kv/110v & 33kv/110v ? If both 11 & 33KV give 110v then what is the diiference ?

1 Answers  

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As per IS why should the control be taken only from R phase, why not from B or Y phase??!!

2 Answers  

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What is the role of feedback in a closed loop control system?

0 Answers   GE,

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CONTACTORS ARE MADE UP OF WHICH MATERIAL?

6 Answers   IOCL,

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why are the likely reasons for bochholz & pressure relays oprate due to a internal fault but not differential relay ?

2 Answers  

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Is the force acting between two parallel conductors of infinte length carrying AC of frequency 50Hz remians constant with respect of time? If not then what would be the frequency of the force acting?

1 Answers  

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Why tripping not occur when the transmission breaks? Doesn't we provide earthfault protection for it?

1 Answers  

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What is the difference between Zero Current Transformer and Core Balance CT ?

1 Answers  

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what is linear motor?

2 Answers   Lucas TVS, wbsedcl,

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